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03-10-2006, 12:52 PM
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#1 |
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Senior Member
Join Date: Oct 2004
Location: calhoun city ms
Posts: 940
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Square port headers?
I am using a 98 350 vortec in my truck, it has square port heads.
Does any board members have suggestions for headers and possibly part numbers with square ports. Would using round port headers cause any problems? other than restrictions in exhaust flow? Would like to keep this purchase under 350 dollars if possible. Thanks for the input.
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ongoing 1970 c 10 lwb  1994 z-28 few mods.-owned since new  1978 vette silver/grey 25th anniv. paint 
Last edited by chevybill; 03-10-2006 at 12:52 PM. |
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03-10-2006, 02:02 PM
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#2 |
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Registered User
Join Date: Dec 2004
Location: Northern AZ
Posts: 7,271
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Re: Square port headers?
call Summit and ask about square port SBC heads. 1(800) 230-3030. You might look on hookers site....can't find anything, just call their tech line 270 781-9741. (562)921-0404 is hedman's and if you buy the elite series they come ceramic coated already. Round ports will leak and restrict flow. Square ports are not going to be any more than regular headers.
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03-10-2006, 03:37 PM
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#3 |
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Senior Member
Join Date: Oct 2004
Location: calhoun city ms
Posts: 940
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Re: Square port headers?
thanks, the actual tech line for summit is 1-330-630-0240, that came from their automated system.
Tim, at summit tech said there is no square port headers and that I would have to use a good gasket and go with a round port header. Does this sound correct?
__________________
ongoing 1970 c 10 lwb 1994 z-28 few mods.-owned since new 1978 vette silver/grey 25th anniv. paint
Last edited by chevybill; 03-10-2006 at 03:41 PM. |
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03-11-2006, 09:54 AM
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#4 |
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Senior Member
Join Date: Oct 2004
Location: calhoun city ms
Posts: 940
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Re: Square port headers?
how about some opinions on the summit tech's info?
__________________
ongoing 1970 c 10 lwb 1994 z-28 few mods.-owned since new 1978 vette silver/grey 25th anniv. paint
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03-11-2006, 11:52 AM
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#5 |
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Registered User
Join Date: Sep 2002
Location: DFW Texas
Posts: 2,270
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Re: Square port headers?
Hooker makes a square port header. It's in the Super Comp line. Part # 520-2840 from Jegs. It's a 1.75 tube size. I'd get you a pic of mine but my wife is out of town and has the digital camera.
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03-11-2006, 01:14 PM
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#6 |
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Senior Member
Join Date: Oct 2004
Location: calhoun city ms
Posts: 940
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Re: Square port headers?
ratrod67, thanks for the information.
does anyone know if there is a shortie version of this header or maybe a ceramic coating part number?
__________________
ongoing 1970 c 10 lwb 1994 z-28 few mods.-owned since new 1978 vette silver/grey 25th anniv. paint
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03-11-2006, 03:00 PM
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#7 |
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Registered User
Join Date: Dec 2004
Location: Northern AZ
Posts: 7,271
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Re: Square port headers?
I don't use the tech line, just the 800 number because they have access to the same info and the call is free. I did include tech numbers to the two big header companies and if you were spending money on the call, I'd call the manufacturer, then get the part # and then call Summit to order it. I have seen several sets of square port headers, I have also seen D port headers. Make sure the heads have square ports, contact headman or hooker direct, get the number, call Summit and order it, that simple.
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03-11-2006, 08:46 PM
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#8 |
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Senior Member
Join Date: Oct 2004
Location: calhoun city ms
Posts: 940
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Re: Square port headers?
Anytime I have called summit and needed technical assistance they always referred me to the pay tech line. I guess you got more knowledgeable or cooperative people when you have called. It is just the luck of who happens to answer the phone call.
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ongoing 1970 c 10 lwb 1994 z-28 few mods.-owned since new 1978 vette silver/grey 25th anniv. paint
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